lithium aluminium tetrahydride in diethyl ether 3 h;

1: 1.) Mg, 2.) Li2CuCl4 / 1.) THF, 2.) THF, a) -5 deg C, 3 h, b) RT, overnight 2: 50 percent / PdCl2, CuCl2, O2 (gas) / dimethylformamide; H2O / 1 h / 60 - 70 °C 3: 1.) NaH / 1.) THF, 1 h, 2.) THF, a) 0 deg C, 3 h, b) RT, overnight 4: 95 percent / H2 / 10 percent Pd/C / ethanol 5: 83 percent / LiAlH4 / diethyl ether / 3 h View Scheme

1: 1.) Mg, 2.) Li2CuCl4 / 1.) THF, 2.) THF, a) -5 deg C, 3 h, b) RT, overnight 2: 50 percent / PdCl2, CuCl2, O2 (gas) / dimethylformamide; H2O / 1 h / 60 - 70 °C 3: 1.) NaH / 1.) THF, 1 h, 2.) THF, a) 0 deg C, 3 h, b) RT, overnight 4: 95 percent / H2 / 10 percent Pd/C / ethanol 5: 83 percent / LiAlH4 / diethyl ether / 3 h View Scheme

1: 50 percent / PdCl2, CuCl2, O2 (gas) / dimethylformamide; H2O / 1 h / 60 - 70 °C 2: 1.) NaH / 1.) THF, 1 h, 2.) THF, a) 0 deg C, 3 h, b) RT, overnight 3: 95 percent / H2 / 10 percent Pd/C / ethanol 4: 83 percent / LiAlH4 / diethyl ether / 3 h View Scheme

1: 1.) NaH / 1.) THF, 1 h, 2.) THF, a) 0 deg C, 3 h, b) RT, overnight 2: 95 percent / H2 / 10 percent Pd/C / ethanol 3: 83 percent / LiAlH4 / diethyl ether / 3 h View Scheme